[Cystadenomas of the common bile duct as the cause of relapsing mechanical jaundice].

Two cases of benign tumors of the extrahepatic biliary ducts with relapsing jaundice are reported. In both cases operation with conservation of natural draining of bile could be performed. Benign tumors of the bile ducts should be taken into consideration, if relapsing jaundice is combined with negative cholangiography or is noticed long time after cholecystecomy of on gallbladder without gallstones. Primary origin of cystadenomas from the extra hepatic biliary ducts is demonstrated.